SWR Bridges

The 87 Series SWR Bridges are precision, high directivity measurement components, ideal for SWR and return loss measurements. Models include a built-in termination, and they are provided with an overall accuracy equation. These SWR bridges can be used for making very low-level SWR measurements by amplifying the RF output prior to detection. Since both the phase and amplitude of the reflected signal are preserved in the RF output, these components can also be used to make accurate phase comparisons in a network analyzer system.

Broadband 2 to 18 GHz frequency range

High 38 dB directivity

Precise GPC-7 test port connector

Built-in reference termination

Specifications

Model

Directivity (dB)

Accuracy1

2 to 3 GHz

3 to 4 GHz

4 to 18 GHz

87A50

35

0.018 +0.32p2

0.018 +0.23p2

0.018 +0.15p2

87A50-1

38

0.013 +0.32p2

0.013 +0.23p2

0.013 +0.15p2

Frequency

2 to 18 GHz

Insertion Loss

6.5 dB nominal2

Maximum Input Power

0.5W

Test Port Connector

GPC-7

Input and Output Connector

Type N(f)

Dimensions

7.3 x 5.2 x 2.9 cm plus connectors

Weight

340g

1 Where p is the measured reflection coefficient
2 Typically 9 dB at 18 GHz from input to test port.